The best NA version of the 3L has changed quite a bit over the last year to year and a half or so. Pretty much, get a 2001 or later 3L. Doesn't matter Tortus or Escape. Follow the how to on the cougar boards and very, very closely follow Warmonger's site (turdbo) and DemonSVT's site (killer NA monster) for worthwhile mods during the swap process.